The curved surface area of a cylinder is 154 cm square . The total surface area of the cylinder is three times its curved surface area . Find the volume of the cylinder
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Answer:
539cubic.cm
Step-by-step explanation:
CSA of cylinder =
=2×22/7×r×h=154
=r×h=154×7/22×1/2
=rh =49/2
And also given that
TSA=3×CSA
=2*pie*r (h+r)=3×154=462
=2×22/7×r×(h+r)=462
=49/2+r^2=147/2
=r^2=147/2-49/2
=r^2=(147-49)/2
=r^2=49
=r=7
volume =pie*r^2*h
=(2*pie*r*h)*r/2
= CSA*r/2
=154×7/2
=539cubic.cm
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